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33cb3cb2e3
freebsd-dev/sys/net
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Alexander V. Chernikov 33cb3cb2e3 Fix rib generation count for fib algo. 
Currently, PCB caching mechanism relies on the rib generation
 counter (rnh_gen) to invalidate cached nhops/LLE entries.

With certain fib algorithms, it is now possible that the
 datapath lookup state applies RIB changes with some delay.
In that scenario, PCB cache will invalidate on the RIB change,
 but the new lookup may result in the same nexthop being returned.
When fib algo finally gets in sync with the RIB changes, PCB cache
 will not receive any notification and will end up caching the stale data.

To fix this, introduce additional counter, rnh_gen_rib, which is used
 only when FIB_ALGO is enabled.
This counter is incremented by the control plane. Each time when fib algo
 synchronises with the RIB, it updates rnh_gen to the current rnh_gen_rib value.

Differential Revision: https://reviews.freebsd.org/D29812
Reviewed by:	donner
MFC after:	2 weeks
2021-04-20 22:02:41 +00:00
..
altq altq: Increase maximum number of CBQ and HFSC classes 2021-03-04 20:58:22 +01:00
route Fix rib generation count for fib algo. 2021-04-20 22:02:41 +00:00
bpf_buffer.c
bpf_buffer.h
bpf_filter.c
bpf_jitter.c Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00
bpf_jitter.h
bpf_zerocopy.c
bpf_zerocopy.h
bpf.c net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
bpf.h
bpfdesc.h
bridgestp.c bridgestp: validate timer values in config BPDU 2021-04-19 12:09:18 +02:00
bridgestp.h net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
debugnet_inet.c net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
debugnet_int.h
debugnet.c Allow to specify debugnet fib in sysctl/tunable. 2021-04-10 13:47:49 +00:00
debugnet.h
dlt.h
ethernet.h bridge: Remove members when assigned to a new vnet 2021-02-23 13:54:07 +01:00
firewire.h
ieee8023ad_lacp.c LACP: When suppressing distributing, return ENOBUFS 2020-11-18 14:55:49 +00:00
ieee8023ad_lacp.h LACP: When suppressing distributing, return ENOBUFS 2020-11-18 14:55:49 +00:00
ieee_oui.h
if_arp.h
if_bridge.c bridge: Remove members when assigned to a new vnet 2021-02-23 13:54:07 +01:00
if_bridgevar.h bridge: fix STP roles and protos strings 2021-02-01 15:27:06 +01:00
if_clone.c Fix subinterface vlan creation. 2021-01-29 21:43:20 +00:00
if_clone.h
if_dead.c
if_debug.c
if_disc.c
if_dl.h net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
if_edsc.c if_edsc: generate an arbitrary MAC address 2020-03-02 02:45:57 +00:00
if_enc.c Consistently include opt_ipsec.h for consumers of <netipsec/ipsec.h>. 2020-05-29 19:22:40 +00:00
if_enc.h
if_epair.c net: Revert vnet/epair cleanup race mitigation 2020-12-01 16:34:43 +00:00
if_ethersubr.c bridge: Remove members when assigned to a new vnet 2021-02-23 13:54:07 +01:00
if_fwsubr.c if_firewire: fixing panic upon packet reception for VNET build 2021-04-13 22:59:58 +00:00
if_gif.c mbuf: add a way to mark flowid as calculated from the internal headers 2021-03-31 14:38:26 +03:00
if_gif.h
if_gre.c Add if_reassing method to all tunneling interfaces. 2020-06-03 13:02:31 +00:00
if_gre.h
if_infiniband.c Streamline the infiniband code according to the ethernet code. 2020-12-31 10:07:02 +01:00
if_ipsec.c net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
if_ipsec.h
if_lagg.c This pulls over all the changes that are in the netflix 2021-01-28 11:53:05 -05:00
if_lagg.h Fix for IPoIB over lagg(4). 2020-12-29 17:35:06 +01:00
if_llatbl.c Fix setting static entries for arp/ndp. 2021-02-20 18:26:35 +00:00
if_llatbl.h Implement optional table entry limits for if_llatbl. 2020-03-04 17:17:02 +00:00
if_llc.h
if_loop.c net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
if_me.c Add if_reassing method to all tunneling interfaces. 2020-06-03 13:02:31 +00:00
if_media.c if_media.c SIOCGMEDIAX handler: improve loop 2020-11-03 14:33:04 +00:00
if_media.h if_media: definitions for 40GE LM4 ethernet media type 2020-09-16 14:45:16 +00:00
if_mib.c net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
if_mib.h
if_pflog.h
if_pfsync.h Fix some common typos in comments 2021-03-13 18:26:15 +01:00
if_sppp.h
if_spppfr.c
if_spppsubr.c Split rtinit() into multiple functions. 2021-01-16 22:42:41 +00:00
if_stf.c net: Introduce IPV6_DSCP(), IPV6_ECN() and IPV6_TRAFFIC_CLASS() macros 2021-03-04 20:56:48 +01:00
if_tap.h
if_tun.h
if_tuntap.c Remove redundant rtinit() calls from tuntap. 2021-01-13 10:03:15 +00:00
if_types.h base: remove if_wg(4) and associated utilities, manpage 2021-03-17 09:14:48 -05:00
if_var.h Enforce check for using the return result for ifa?_try_ref(). 2021-04-05 03:35:19 +01:00
if_vlan_var.h Add support for stacked VLANs (IEEE 802.1ad, AKA Q-in-Q). 2020-10-21 21:28:20 +00:00
if_vlan.c Fix vlan creation for the older ifconfig(8) binaries. 2021-04-11 18:13:09 +01:00
if_vxlan.c vxlan: correct interface MTU when using hw offloads 2021-03-31 14:38:26 +03:00
if_vxlan.h if_vxlan(4): add support for hardware assisted checksumming, TSO, and RSS. 2020-09-18 02:37:57 +00:00
if.c capsicum: Limit socket operations in capability mode 2021-04-07 14:32:56 -04:00
if.h Widen ifnet_detach_sxlock coverage 2021-02-11 16:12:29 +01:00
ifdi_if.m iflib: add support for admin completion queues 2021-03-03 00:40:47 +01:00
iflib_clone.c iflib: allow clone detach if not yet init 2021-03-09 13:49:13 -06:00
iflib_private.h
iflib.c iflib: add support for netmap offsets 2021-04-05 07:54:47 +00:00
iflib.h iflib: Make if_shared_ctx_t a pointer to const 2021-03-08 12:39:06 -05:00
ifq.h Make net/ifq.h C++ friendly 2020-11-20 14:45:45 +00:00
infiniband.h Factor out generic IP over infiniband, IPoIB, definitions and code 2020-10-22 09:09:53 +00:00
mp_ring.c net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
mp_ring.h
mppc.h
mppcc.c kernel: provide panicky version of __unreachable 2020-05-13 18:07:37 +00:00
mppcd.c
netisr_internal.h
netisr.c net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
netisr.h
netmap_legacy.h netmap: add kernel support for the "offsets" feature 2021-03-29 16:29:01 +00:00
netmap_user.h netmap: restore commit a56e6334d1 2021-04-02 10:45:47 +00:00
netmap_virt.h netmap: add kernel support for the "offsets" feature 2021-03-29 16:29:01 +00:00
netmap.h netmap: several typo fixes 2021-04-02 07:01:20 +00:00
paravirt.h
pfil.c
pfil.h
pfkeyv2.h Add SADB_SAFLAGS_ESN flag 2020-10-16 11:22:29 +00:00
pfvar.h pf: Optionally attempt to preserve rule counter values across ruleset updates 2021-04-19 14:31:47 +02:00
ppp_defs.h
radix.c Appease -Wsign-compare in radix.c 2021-04-10 13:48:25 +00:00
radix.h
raw_cb.c Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00
raw_cb.h
raw_usrreq.c Revert "SO_RERROR indicates that receive buffer overflows should be handled as errors." 2021-02-08 22:32:32 +00:00
rndis.h Hyper-V: hn: Enable vSwitch RSC support in hn netvsc driver 2021-03-12 04:35:16 +00:00
route.c capsicum: Limit socket operations in capability mode 2021-04-07 14:32:56 -04:00
route.h capsicum: Limit socket operations in capability mode 2021-04-07 14:32:56 -04:00
rss_config.c net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
rss_config.h
rtsock.c Relax rtsock message restrictions. 2021-04-20 21:34:19 +00:00
sff8436.h net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
sff8472.h net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
slcompress.c net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
slcompress.h net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
toeplitz.c
toeplitz.h
vnet.c Widen ifnet_detach_sxlock coverage 2021-02-11 16:12:29 +01:00
vnet.h net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00